catalysis


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catalysis

 [kah-tal´ĭ-sis]
increase in the velocity of a chemical reaction or process produced by the presence of a substance that is not consumed in the net chemical reaction or process; negative catalysis denotes the slowing down or inhibition of a reaction or process by the presence of such a substance. adj., adj catalyt´ic.

ca·tal·y·sis

(kă-tal'i-sis),
The effect that a catalyst exerts on a chemical reaction.
[G. katalysis, dissolution]

catalysis

/ca·tal·y·sis/ (kah-tal´ĭ-sis) increase in the velocity of a chemical reaction or process produced by the presence of a substance that is not consumed in the net chemical reaction or process; negative c. denotes the slowing down or inhibition of a reaction or process by the presence of such a substance.catalyt´ic

catalysis

[kətal′əsis]
Etymology: Gk, katalein, to dissolve
an increase in the rate of a chemical reaction that is caused by a substance that is neither permanently altered nor consumed by the reaction. Compare negative catalysis.See also catalyst. catalytic. adj., catalyze, v.

ca·tal·y·sis

(kă-tal'i-sis)
The effect that a catalyst exerts on a chemical reaction.
[G. katalysis, dissolution]

ca·tal·y·sis

(kă-tal'i-sis)
The effect that a catalyst exerts on a chemical reaction.
[G. katalysis, dissolution]

catalysis (kətal´əsis),

n the increase in rate of a chemical reaction, induced by a substance called a
catalyst, which takes no part in the reaction and remains unchanged.

catalysis

increase in the velocity of a chemical reaction or process produced by the presence of a substance that is not consumed in the net chemical reaction or process; negative catalysis denotes the slowing down or inhibition of a reaction or process by the presence of such a substance.

covalent catalysis
one type of enzyme reaction with substrates to form very unstable, covalently joined enzyme-substrate complexes which undergo further reaction.
References in periodicals archive ?
By endowing the chair, Sabic seeks to create a world-class centre of excellence in polymer catalysis based on a synergistic collaboration between the newly endowed Kaust chair and Sabic's own well-established expertise in catalyst development, a statement said.
The Caltech Center for Catalysis and Chemical Synthesis features a catalysis workflow including multiple Symyx Core Modules (configurable robotic base stations).
After presenting a brief history of catalysis and highlighting several significant industrial applications of heterogeneous catalysis, Chapter 1 concludes by providing an overview of basic molecular catalysis principles and the role of surface structure in catalysis.
A significant portion of the bleaching chemical is consumed by side reactions that may be limited or prevented with the use of special catalysis," said Bucher.
Unexpectedly, it was discovered from the structure that Tyr6 stabilized the thiolate intermediate of the glutathione during catalysis (6,65-66).
While Platinum's senior VP of component-based development and co-author of the Catalysis Approach, Desmond D'Souza, didn't want to give away too many details in terms of product integration, he told Computerwire that CA is going to support the Catalysis Approach.
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This work provides a unique perspective on the applications of transition metal catalysis in drug discovery and development - it is a guide, a historical prospective, a practical compendium, and a source of future direction for the field.
With this newly discovered chemical approach, a critical first step was taken towards preparation of these materials in large scales, which is a prerequisite for assessing their potential for industrial catalysis, said Peter Walther, Senior Vice President, Heterogeneous Catalysis, BASF.
In a textbook for a one-semester course at the senior or graduate level, Prins, Wang, and Li set out the basics of catalysis that chemical engineers, chemists, and materials scientists all need to know as a foundation for their separate but complementary specialties.
Qatar Environment and Energy Research Institute ( QEERI), a research and development entity under Hamad Bin Khalifa University (HBKU), recently organised Qatar's first industrial catalysis workshop entitled 'A Roadmap for Catalysis Research- Qatar's Perspective'.